Front contact photo-electrochemical H-Cell setup (redox.me)

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  Three Electrode Battery Test Cell – compression controlled (redox.me)

  This cell is designed as high-quality alternative to Swagelok-type constructions for reproducible electrochemical measurements of battery and supercapacitor materials.

  The cell consists of two main elements:

   

  (i) the cell base with micrometre screw and compression spring, which allows precise control of pressure applied to the electrode sandwich; and

  (ii) electrode cartridge where the anode, cathode and reference electrode are located.

   

  The (default) electrode cartridge and plungers are designed for planar electrodes with diameter of 18 mm and total sandwich thickness of 2.5 mm. The diameter of separator shall be at least 2 mm larger than electrode diameter (max. 22 mm). The lock ring secures the separator in the electrode cartridge allowing easy and safe electrodes insertion, while ensuring accurate alignment. The upper and lower electrode plungers are available in various materials: 316L Stainless Steel (default), copper, aluminum, nickel etc. The pin-type reference electrode is installed from the side of the electrode cartridge. Thanks to sharp edged hole at the end of the pin the reference electrode (Li/Na/K etc.) can be easily punched from the metal foil and directly loaded into cell. The magnetic mount facilitates rapid assembly of the cartridge in the cell base. The force applied to the electrodes can reach up to 90N and is adjusted with the micrometer control knob. For 2-electrode measurements, the reference electrode feedthrough hole can be closed with the reference electrode punch.

  The cell elements are constructed with materials that are inert to the sample (Stainless steel and PEEK). It well fits aqueous (FKM and EPDM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements. Good electrical contact is ensured by gold plated pins. The construction is gas-tight and can be effortlessly assembled in the glove box, reducing possible human error to minimum.

   

  Application note:
  This cell can be used for all common battery measurements, such as galvanostatic cycling, cyclic voltammetry or electrochemical impedance spectroscopy. Both liquid and solid-state or gel-polymer electrolytes can be studied. Additionally, properties and performance of supercapacitor materials can be investigated. Various materials can be examined, including typical Li-ion electrodes (graphite, NMC, LTO etc.) and other chemistries – sodium, magnesium, potassium etc. It can also be applied to measure the ionic conductivity of separators and electrolytes. Owing to the micrometer control knob, the relationship between the initial pressure applied to the cell and the performance of solid-state electrolytes or metal plating process (anode-free systems) can be studied.

   

  The above graph shows relation of pressure applied to electrode stack and distance travelled from the point of contact. The point of contact can be determined by checking OCV (see manual video) or by calculation. To calculate the point of contact, subtract electrode stack thickness from 4 mm. For example, for the 0.9 mm stack, the point of contact (i.e. reading on micrometer screw) will be 4 mm – 0.9 mm = 3.1 mm. Therefore, you should set micrometer screw to 3.1 mm and measure distance/pressure relation from this point.

   

  Specification:
  recommended electrode diameter: 18 mm (other options: 12 mm, 15 mm, 16 mm)
  recommended minimum separator diameter: electrode diameter + 2 mm (max. 22 mm)
  maximum electrode sandwich thickness: 2.5 mm
  spring rate: 10.86 N/mm
  maximum spring load: 90 N
  operating temperature: -40°C – 80°C (default)

   

  Intrastat data:
  HS Code: 90309000
  Country of Origin: Sweden
  NET weight: 400g

   

  Product includes:
  1 x cell base
  1 x compression control unit
  1 x Three-Electrode Cartridge
  1 x reference electrode punch
  1 x upper plunger (Stainless Steel)
  1 x lower plunger (Stainless Steel)
  1 x separator locking ring
  1 x gold plated piston
  1 x compression spring
  2 x gold plated pin contact
  1 x set of O-rings
  1 x set of 3 cable adapters 1mm to 4mm banana plug
  1 x electrode plunger removal tool

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• 

  SIRE Sensor Cell Set (Sensor with Injectable Recognition Element)

  The SIRE Sensor Cell Set consists of a sensor with an integrated non-removable specialised chamber.

   

  The set also contains a syringe which will allow the injection of the recognition element (Enzyme).
  The SIRE Sensor Cell uses the concept of soluble enzymes into a reaction chamber separated from the sample by a semi permeable dialysis membrane. The analyte (for example maltose), enters into the reaction chamber by diffusion. The analyte reacts with the recognition enzymes creating H₂O₂ which is oxidized on a screen printed Pt electrode. The current corresponds to the amount of analyte.

   

  * For this product, we recommend our customers use the Training Service from BVT.

  (https://bvt.cz/produkt/offer-of-long-term-automated-measurements-on-bvt-apparatus/)

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• 

  Spectro-electrochemical flow cell setup (redox.me)

  This is a horizontally mounted, multi-purpose spectroelectrochemical cell designed to be used with standard UV-Vis or IR spectrometers. It enables obtaining electrochemical and spectroscopic information from liquid sample or thin films in systems where variations in applied potential induce changes in observed spectra. It consists of a polyether ether ketone (PEEK) flow chamber equipped with a magnetic or screw mount sample holder, screw mount quartz window holder and two different mini tripods. It well fits aqueous (FKM O-Rings) and organic solvent (FFKM O-Rings) electrolyte requirements.

  The cell is meant to be used with a standard reference electrode having 6 mm in diameter and a counter electrode either in the form of a rod or helix with 6 mm in diameter and 15 mm active length.

   

  Application note:
  The spectroelectrochemical cell is used to study the relation between absorbance/transmittance and electrochemical potential. It enables real-time monitoring of optical change in electrochromic materials. It also enables in-situ spectral acquisition for detection, identification and characterization of short-lived electrochemically-generated species/intermediates, resulting in a detailed investigation of the mechanistic pathways of redox processes.

   

  Specification:
  nominal exposure area: 1 cm² (other values on request)
  optical path length (electrolyte thickness): 12 mm
  flow chamber volume: 1.75 mL
  maximum substrate thickness: 4 mm
  electrode plug diameter: 6 mm
  minimum substrate size: 17 mm x 25 mm
  recommended substrate size: 25 mm x 25 mm

   

  Intrastat data:
  HS Code: 90275000
  Country of Origin: Sweden
  NET weight: 300 g

   

  Setup includes:
  1 x Magnetic Mount Spectro-Electrochemical Flow Cell – MM spectro-EFC 1.75 mL (or Spectro-Electrochemical Flow Cell – spectro-EFC 1.75 mL)
  1 x Metal Wire Auxiliary Electrode – 35HX15 0.6/235 mm (Platinum)
  1 x Reference electrode (Ag/AgCl, or Ag/Ag+)

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• 

  Hanging Platinum Drop Electrode

  The Hanging Platinum Drop Electrode (HPDE) is solid phase alanogy of HMDE.

   

  The drop of liquid Pt at 2000 °C forms a drop of Pt. The surface of HPDE has nearly ideal surface which is impossible to obtain using polishing. HPDE has also spherical symmetry which enables mathematical treatment of its response.
  The material is not toxic and it is chemically stable. The only disadvantage is HPDE cleaning, which can be, however, in some cases solved by carefull insertion of the electrode tip to the flame of an alcohol burner.
  Thus HPDE can be used as reference electrode for complicated electrochemical studies, where it is necessary to distinguish the analytical signal from the signal generated by surface inhomogenities.

   

  Hanging platinum drop electrode (HPDE) is designed for measurements with thermostated cell TC4, TC5, TC6 and TC9.

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